Hives are itchy red or white bumps that often stem from an allergic reaction. Unlike some other rashes, hives are not contagious and are an allergic-type reaction. Hives and other rashes can become ...
Marisa Garshick, MD, FAAD, is a board-certified dermatologist and clinical assistant professor of dermatology. Skin lesions can be primary (present from birth or develop later in life) or secondary ...